Take the words on the left and forget about the first half of the compound words... Take the words on the right and forget about the last half of the compound words...

ie... hindbrain becomes brain and weightlift becomes weight.

Now figure out which word links brain and weight.

like CLOTHES and ON might be IRON...

Thanks! I just couldn't get jumpstart. You came through for me...------------------------------edit:And don't worry about the timing - - everyone helps as they can, in the time they have... there is life outside tanga puzzling **gasp**